8670979 has 4 divisors (see below), whose sum is σ = 8950720. Its totient is φ = 8391240.

The previous prime is 8670947. The next prime is 8670989. The reversal of 8670979 is 9790768.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8670979 - 2⁵ = 8670947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8670919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139824 + ... + 139885.

It is an arithmetic number, because the mean of its divisors is an integer number (2237680).

Almost surely, 2^8670979 is an apocalyptic number.

8670979 is a deficient number, since it is larger than the sum of its proper divisors (279741).

8670979 is a wasteful number, since it uses less digits than its factorization.

8670979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279740.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 8670979 is about 2944.6526110901. The cubic root of 8670979 is about 205.4420680369.

The spelling of 8670979 in words is "eight million, six hundred seventy thousand, nine hundred seventy-nine".